One 304 S.S. tube Will become positive charged and the other 304 S.S. tube will Become Negative Charged. Just like he says, he did not stretch the truth on that.
You can Take A Zinc Electrode and an Carbon electrode and Place it into water. The Carbon Carrying 4 electrons in its valence shell will be positively charged as it (Takes In) the electrons in the water Paste (From the "Charged" zinc) carrying only 2 electrons in its valence shell. It is Clear why the carbon here in this case took on the Positive charge! At least it should be, If it is not clear, Stop your work and take up chemistry for a couple of months to help, (Open your mind.)
HOWEVER, Carbon Becomes the Positive electrode because of its valence shells behavior and the zincs behaviour, There Exist a Mystery alloy (Found in NiMh Rechargeables) Wiki, And once this metal Replaces the Carbon The Zinc then becomes the Positive Lead, A very Abnormal behavour and yet (All proven in tap water.)
Take A rechargeable battery apart, Disassemble its TOP with a Tube Cutter. (Remove its Positive anode Arm.) See Just how important the Laughable alloy is for allowing electrons to exit its liquid. You'll quickly see the AA battery become Useless when removing the arm witch Dips into the past. Try Bypassing it with a simple Prob needle from a Multimeter with No Effect!!!
There's a reason Your Fuel cells are oxidizing on its terminal. Can not you understand that by this the electrode potential is None equal (As It Virginly was!) De virginized electrodes with the oxidization only creats a very small electrode potential. IF Both were equal, Electrons wouldn't flow. This can be Tuned with this knowledge. However, Oxidization accures and theres electrolysis.
1 304, Placed Near 1 316L electrode is Better than --- 2 304 electrodes, or even 2 316 electrodes.
if you're wondering what zinc looks like, Check out the tubes in stans video. As you can see when thought to be Stainless steel while viewing the famous youtube video clearly it doesn't look to be ss as the tubes appear dark, or dull. Zinc carries a very similar look, there is also zinc coating, Allthough herman used Nickel.
As your quote stated, (Will Become.) Right you are! But, with a WISE selection, it (Already Is/(Fixed).) The Electrons "in any Paste/Electrolyte" are looking for somewhere to go, It is the Choice of electrode Potential that will determine their electron ejections direction and ionic cation movements!!!!!
Just a Thought I once again shared.